Tucson is a city in and the
county seat of Pima County, Arizona, United States, and home to the University
of Arizona. The 2010 United States Census puts the city's population at
520,116, while the 2012 estimated population of the entire Tucson metropolitan
area was 992,394. The Tucson MSA forms part of the larger Tucson-Nogales
combined statistical area, with a total population of 980,263 as of the 2010
Census. Tucson is the second-largest populated city in Arizona behind Phoenix,
which both anchors the Arizona Sun Corridor. The city is located 108 miles